Improvement in carriage-springs



. any dimmi ANSON C2 -STOWE, OF SAN JZOS, CALIFORNIA.

LetferalPatent No. 85,144, (lated December 2:42', 1868.

IMPROVEMENT IN CARRIAGE-SPRINGS.

The Schedule referred to in these Letters Patent and making part'of the same.

To all whom 'it may concern `Be it known that I, ANS'ON C. S'rown, ot' San Jos., county of Santa'Glara, State of California, hnre invented an Improved Carriage-Spring; and 1 do hereby declare the following description nnd :wconipnnying drawings are suiqient to enable any person skilled in the art or science to which it most nea-rl)l appert-nins, to niake and use `my said invention or impri-nlements without further invention or experiment.

The object of i'ny invention is to provide an iniproved carriage-spung, which, while being perfectly easy, shalliivercmm the grcetdiii'icnlty experienced (when the load is plnccdnlostly on one side,)i.\f the spring` On that side hai-iinr to sustain the whole weight, and consequei'rtly sagginU.

This may be accomplished by various devices, land the present is one of thc two upon which I have made application, in which a similar principle is involved.

From near the ends oftlie'axle-bed nnd iront-crossbar, four standards rise, and cach pair supports a shaft,

which extends across the'width O f the carriage. 'Atthe ends of these shafts are four coiled springs, which are attached to the reaches, and are coiled like a clockspring, the inner end being fastened to the. ends-of the" shaft. 'A

vAn ann Or, crank is firmly attached tO each end' of the shafts, near the springs, and supports the four cor-- ners of the wagonbed or frame, by means of links de' pending from these cranks.- A cross-bar connects the central portion Of the two reaches, and an arm is pivoted to its centre. 'u

TWO cranks Or arms, One in the middle of eac-h of the first-described shafts, are connected with the Opposite ends Of t'hiswentral arm, by'connectingrods, so that the springs all act together, whether the load he placed on one portion of the carriage or another.

TO more fully explain my invention, reference Ais had,` .to the accompanying drawings, forming a part Of this specification, of which- Figure l is a side sectional elevation ofniy invention. Figure? is a plnn. Similar letters ol' reference in each ofthe figure-s indicate like parts. l

A is the rezlr-axle'bed, and B is the. front plate or cross-bnr, the two being connected by reaches C C.

Vertirnl standards, D D, irc fastened vfo the axlehed and cross-bnr, or to the reaches, and support the two shafts E E, which extend across the carriage.

The coiled springs F .F am* fastened at one end ,to the ends of the roaches, and coil around the shafts, to

`which .the other end is fastened.

A. donhlc arin Ilr crank, G, is firmly attached to cach end of' the shafts E, :rnd the four support the corners of` the carriage frnnie or bed HV, by links 1 I,- which de.- pend 'roni them, and connect with the cross-rods .T J.

A short nrin-or crank, K, projects downward from near the centriof cach of the shafts E, and each has a colnnwting-rod, L, extending from its Vend to the Opposite ends of an arm, M. This :mn turns about 'a centre-pin, (l, which holds it tothe cross-beam N, be-

tween the central portion ofthe reaches, or to the cen-v tral reach, when there are three, and when any weight is placed entirely at one end, these cranks ,L nd rods vcause the springs at the other end to bc equally delpressed, the -whole acting an equalizer'.

Having thus described my invention,

l claim, and desire tosecnre by Letters Patent- The coinbination, with the s..ppoxtingdevice, con; sisting ofba-rs H, links 1, arnis G, shaft-s E, and springs Fof the equalizing-'device, consisting of arms K, rods 'L, and lever M, the whole being constructed and arranged suhstnitially as herein described. p In witness whereof, I have hereunto set my hand and-seal.

ANSON C. 'STOWE [L. s.] Witnesses:

GEO. H. STRONG, J. L. BOONE. 

